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I've just spent some length of time trying to figure out the engine/transmission fitment issues I'm having at the moment and have hit a bit of a wall so I'm hoping someone on here can spot where I'm going wrong. Car is a US spec '71 240z, engine is a BNR34 RB26, transmission is from an R33 GTST (RB25), engine and gearbox mounts are from McKinney Motorsport. I fitted the McKinney engine mounts to the engine, then the McKinney gearbox poly mount to the gearbox, then bolted the engine & transmission together. I lowered the whole assembly into the car, and using an engine leveler I got it sitting roughly square and level in the car. I found though that I couldn't get the engine to clear the bonnet latch bracket. I thought it must have been something to do with a clearance issue; it kind of felt like the engine needed to go backwards for the mounts to sit on the subframe but it couldn't quite get "under" the bonnet latch bracket as the engine clashed with it. I struggled with this for a while so tried a different approach. I unbolted the subrame from the car and lowered the engine down to get the rear of the engine sort of under the bonnet latch bracket. I then bolted the subrame onto the engine and bolted the gearbox mount to the poly bush. This seemed to work pretty well as it was much easier to get the engine into roughly the right place. I then lifted the whole lot back up again so that the gearbox mount lined up perfectly with the bolt holes in the chassis, but somehow the problem with the bonnet latch bracket remained, it STILL clashed with the engine. I can't seem to figure out what's going wrong here? You can see from the pictures that the following all seem to be correct: The gearbox is pretty central in the transmission tunnel. The engine is pretty central in the engine bay. The engine mounts are adjusted so that the engine would be in its forward most position. The engine/gearbox mounts all seem to be fitted correctly. But somehow, the RBs breather still seems to be butted up hard against the latch bracket. It's odd, because the only way for the engine to clear the bracket would be to either move the engine forward or downward. I can't see that this is possible though because its position along the length of the car is somewhat fixed by the gearbox mount and it can't really go any further forward anyway without the front pullyeys hitting the anti-roll bar, that means the engine can only really go down and away from it. However, this isn't possible either. You can see from the pictures that the engine is fixed to the subframe, but the subrame isn't bolted to the chassis. This is because it can't come up any higher because of how hard the breather is butted against the bracket. I've tried everything. All the bolts are done up finger tight so that the whole assembly can be "jiggled" around to try and get it to line up right but it doesn't. Can anyone suggest where I may be going wrong? Any help would be much appreciate, I've been really struggling with this for hours!